Vehicle loading and unloading device



H c. STONE. VEHICLE LOADING AND UNLOADING DEVICE.

APPLICATION HLED MAR. 9, I920.

Patented May 17, 1921.

5 SHEETS-SHEET I.

[NV/LY TOR.

H.C.STONE.' VEHICLE LOADINGAND UNLOADING DEVHIE.

I APPLICATION FILED MAR. 9, 1920. 1,378,631

Patented May 17, 1921.

5 SHEETSSHEET 2.

, H. 0. 5mm.

VEHICLE LOADING AND UNLOADING DEVICE.

APPLiCATION FILED MAR. 9, I920.

1,3?8,63 1.. Patented May 17,1921.

5 SHEETS-SHEET 3.

9 Z;'c U- INVENTOR. v

""ATTORNEQI Hi C. STONE. VEHICLE LOADING AND UNLOADING DEVICE.

APPHCATIUN FILED MAR. 9, 1920- atented May 17, 1921.

5 SHEETS-SHEET 4.

v A TTORNE Y.

H. C. STONE.

VEHICLE LOADING AND UNLOADING DEVICE.

APPLICATION FILED MAR. 9, I920.

Patentd May 17,1921.

X/ 'INVENTOR.

A TTORNE Y lowing is a full, clear,

loading and unloading HERBERT G. STGNE, 0F BROOKLYN, NEW YORK.

VEHICLE LUADIZNG AND UNLOADING DEVICE.

T 0 all whom it may concern: I Be it known that I, Hnnnnn'r C. Stroivn, a citizen of the United States, residing at Brooklyn, in the county cf'Kings and {state of New York, have invented certain new and useful Improvements in Vehicle Loading and Unloading Devices, of which the foland exact specification.

This invention relates to mechanism for vehicles, and is especially designed for use on motor trucks although it may also be adapted for use on other conveyances. I

Itis the aim of the invention to provide improved mechanism capable of handling loads of various sorts so that the loading or unloading mechanism best adapted for the particular load to be handled may be employed. Special objects are to provide improved means for hoisting and moving a load from a position in rear of the vehicle to a. position on the front or other part thereof,

means for drawing a load into the vehicle over a skid, when desired. and means for automatically and positively dumping the vehicle when required.

The invention also contemplates the provision of'means for independently controlling the hoisting and traversing cables, means for adjusting the cable drums for the hoist so that they may be maintained properly taut, means for locking the traversing frame to the body when the latter is to be dumped, and means for simultaneously locking said body to the frame of the vehiclewhen it is released from said, traversing frame, and vice versa. Other objects will appear as the description proceeds.

The invention will be first hereinafter described in connection with the accompanying drawings, which constitute part of this specification, and then more specifically defined in the claims at the end of the description.v

In the accompanying--drawings, wherein similar reference characters are used to designate corresponding parts throughout the several views Figure 1 is a side elevation of the rear or body portion of a motor truck equipped with loading and unloading mechanism substantially as contemplated by this invention.

Fig. 2 is a plan view of the same.

Fig. 3 is an end elevation of the device from the front, the side frame members of Specification of Letters Patent.

Patented May 1'7, 1921.

Application filed March 9, 1920. Serial No. 364,465.

the truck and the engine shaft being broken just beliind the front cross bar in Fig. 2.

Fig. f is a detailed perspective view of the locking device forsecuring the body of the .vehicle to the frame thereof or to the traversing frame, respectively.

Fig. 5 is a diagrammatic side View of the truck showing how the hoisting and traverslng mechanism may be used for shipping a load.

Fig. 6 is a similar view showing the completed operation of loading with the hoist and travers ng frame.

Fig. *7 is a detailed view of the upper end portion of the traversing frame, showing how the upper side pulley or sheave for the hoisting cable is mounted thereon.

Fig. 8 is a diagrammatic side View of the truck showing how a load may be drawn into the body over a skid, and

Fig. 9 is a similar view showing how the traversing frame may be attached to the body and used for dumping the same.

Any suitable form of vehicle frame or chassis may be provided, that shown consisting of side bars 1 and cross bars 2. The body 3 is pivoted at l to brackets 5 suitably fastened to the rear end portions of the side bars 1, and said rear end portion of the chassis is supported on traction Wheels 6 by standards 7, Fig. 3, or otherwise. The

iressed into the position shown in Figs. 1, 2-

and 3. The free or lower ends of the side members 12 ofthe traversing frame extend some distance beyond the pivots 4. Said frame 11 is adapted to be swung upon the pivots 4: in either direction by means of two sets of cables 14 and 15, the former being attached to the side members 12 above the pivots side members below the pivots near tremities of said side members.

Said cables 14 and 15 are mounted to wind in opposite directions upon drums 16 and 17 on the ends of a transverse shaft 18 suitably journaled in brackets 19 on the side bars 1 the exof the chassis. The drum 16 and 17 are 5101- justably fastened to the shaft 18 by set screws 20, Fig. 2, permitting them to be adjusted to take up any slack in the, cable 1% and 15, so that there will be no loose play in said cables in actuating the traversing frame 11.

The shaft 18 carries a worm gear 21 mesh ing with a worm 210 on a. counter shaft 22 suitably journaled at 23 on one of the cross bars 2 of the chassis. Said countershaft 22 also carries a bevel gear 25% meshing with a bevel gear 2-5 on short vertical shaft 26 journaled' at 27 on an intermediate longitudinalbar 28 of the chassis, Figs. 2 and 3. The shaft 26 also carries a bevel gear 29 adapted to mesh with either oftwo facing bevel gears 30 and 31 on a sleeve 32 splined on the engine shaft 8 and controlled by a lever 33. By suitably adjusting said lever 33, the sleeve 32 may be moved to disengage both gears 30 and 31 from the gear 29, which will be the neutral position of said lever, or either of said gears 30 or 31 may be brought into mesh with said gear 29 for rotating the shaft 18 in one direction or the other through the shafts 26, gears 25 and 24, shaft 22, worm 210 and gear 21. hen said shaft 18 is thus rotated in one direction, the cables 1 1 will be wound upon their drums 1G and th cables 15 simultaneously unwound from Muir drums 17, with the result that the traversing frame 1.1 will be swung forwardly,

while the reverse rotation of said shaft 18' will Wind up the cables 15 and unwind the cables 14:, thereby swinging said traversing frame 11 rearwardly.

A hoisting cable 34,-, carrying a hook 351 on its free end, is threaded through a sheave 36 on the cross bar 13 of the traversing frame, and another sheave 37 set in a slot 38 in one of the side members 12 of said traversing frame, Figs. 2, 3 and 7, and passed around a third sheave 89 on the outer face of said side member 12 near the pivot 4. From saidsheave 39, the cable 34 extends forwardly and is wound upon a drum 40 on a short transverse shaft 11 suitably jour naled upon the chassis in rear of the shaft18. I

The shaft 11 carries a worm gear 42 meshmg with a worm 4-3 on a sleeve 441 on the engine shaft 8, said sleeve being loose on said shaft butadapted to be coupled up to turn therewith at will by means of a suitable clutch 4L5 splined on the engine shaft and controlled by a lever 46. It will thus be seen that the hoisting cable may be actuated independently of the cables for actuating the traversing frame, and vice versa. flhus, as illustrated in Figs. 5 and (3. the traversing frame 11 may he swung rearwardly and the hoisting cable 34 paid out to enable the hook to be engaged with a load 4-7, said cable then drawn or body. The swin ing of the frame 11 ,rearwardly when it is thus connected or locked I to the front end of the body, will accomplish the desired dumping of said body, as shown in Fig. 9.

The pint-1e 49 carries another latch member 51 on its lower end which is adapted to interlock with a lug 52 on one of the cross bars 2 of the chassis when the latch member 18 is disengaged from the traversing frame-11, as shown in Fig. 8. It will be noted'that when said latch member 48 is engaged with the frame 11 the latch member 51 is disengaged with the lug 52 so that it is impossible for the body to be locked down and also looked to the frame 11 at the same time, the operation of looking to one simultaneously unlocking from the other. The pintle may be retained in either of its locking positions, so as to prevent its accidental displa ement by a tooth 53 on a collar 54 mounted to slide on the pintle and pressed by a spring 55, said tooth being adapted to made V-shaped for that purpose, is forced' out of the notch in which it happens to be engaged, and said tooth rides along the ed'ge of the notched journal 50 until it reaches the other notch, whereupon the spring seats it in said notch.

Fig. 8 illustrates how the device may be utilized for drawing a 'load 57 into the body 3 over a skid 58 which may have hooks 59 on its upper end to engage with slots (30, Fig. 2, in the rear end of the floor of the body. lVhen this manner of loading is to be employed, the frame. 11 is swung forward and retained in that position While the hoisting cable 34 is actuated to haul the load aboard by means of the hook being engaged with said load. During this operation the body 3 is locked to the chassis,

as shown in Fig. 8, to prevent tipping of being intermediately pivoted to the vehicle, a shaft, cables wound in opposite directions on said shaft and connected to said side members of the frame at opposite sides of the pivots thereof, and means for actuating said shaft in either direction for swinging the frame in either direction.

2. The combination with a motor vehicle and the engine shaft thereof, of a traversing frame pivoted to swing in a vertical plane on the vehicle, two transverse shafts on the vehicle, cables wound in opposite directions on one of said shafts and connected to said frame at opposite sides of the pivot thereof, a hoisting cable wound .on the other transverse shaft and running over said frame, and means for independently actuating said. transverse shafts from the engine shaft.

3. The combination with a vehicle, of a dumping body, a traversing frame pivoted astride said body, means for swinging said frame in a vertical plane, and means for locking said frame to the body for dumping the latter when the frame is actuated.

t. The combination with a vehicle, of a dumping body, a U-shaped frame pivoted astride said body, means for swinging said frame in a vertical plane, and a latch for 'lockmg the front end portion of the body to the cross bar of the frame, whereby the actnation of the latter will dump the body.

The combination with a vehicle, of a dumping body, a frame pivoted to swing in a vertical plane, means for actuating said frame, a pintle swiveled on the front end portion of the body and having latch 1nembcrs on its upper and lower ends, and a lug fixed to the vehicle and adapted to be engaged by the latch member on the lower end of the pintle for locking thebody against dumping when the latch member on the upper end ofthe pintle is disengaged from the frame, and vice versa. i

6. The combination with a vehicle, of a dumping body. a frame pivoted to swing in a vertical plane, means for actuating said frame, means for locking said frame to the body for dumping the same when the frame is actuated, and means for automatically locking said body to the vehicle against when the frame is released from the body, and vice versa, and means for retaining said locking means in either position. I

8. The combination with a vehicle, of a dumping body, a frame pivoted to swing in a vertical plane, means for actuating said frame, a pintle swiveled on said body and having latch members to alternately secure 'said body to said frame and to the vehicle chassis, and a spring pressed tooth on said pintle to retain the same in either position.

9. The combination with a vehicle, of a dumping body, a frame pivoted to swing in a vertical plane, means for actuating said frame, a pintle swiveled on said body and having latch members to alternately fasten the body to the frame for dumping, and fasten the body to thevehicle chassis against dumping, a bearing for said pintle having V-shaped notches therein, and a spring pressed collar on said pintle having a. V- shaped tooth to engage either of the notches in the bearing for retaining the latch members in either position.

10. The combination with a vehicle, of a traversing frame pivoted to swing in a vertical plane on the vehicle, two transverse shafts on the vehicle, cables wound in opposite directions on one of said shafts and connected to said frame at opposite sides of the pivot thereof, a hoisting cable'wonnd on the other transverse shaft and running over said frame. a driving shaft, and means for independently actuating said transverse shafts .from the driving shaft.

ln testimony whereof I have signed my name to this specification.

HERBERT c. STONE. 

